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LCT 840 Introduction Thank you that you have opted for a LEWITT product. In this operating manual you will learn more about your LEWITT microphone, its handling and its proper usage. With the LCT Authentica Series, LEWITT introduces a new generation of highly versatile wired condenser microphones that all aim for setting new benchmarks of technology, sound quality and user-friendliness in both professional studio recording and onstage use.
LCT 840 The product LEWITT’s LCT 840 is a premium-class externally polarized dual-diaphragm tube microphone designed to excel in a variety of demanding applications. Equipped with a precision-engineered 1-inch capsule, the LCT 840 stands for exceptionally warm and classic, solid vintage sound. Perfectly suited for miking vocals and instruments, this rugged multi-purpose microphone allows for highly nuanced and authentic sound reproduction in the studio and even on stage.
LCT 840 Features ■ Features / Top applications Top applications Ultra-thin 1-inch externally biased, gold-layered low-mass diaphragms combined with a dual Lead and background vocals triode tube ensures accurate transient response while providing smooth, warm and airy tube Acoustic instruments // piano, guitar, sound drums, percussion, strings...
LCT 840 Using the mic User-interface ① Mains voltage selection switch ⑤ High-pass filter indications ⑧ Noiseless pre-attenuation push button Fuse ② On / Off switch ⑥ Noiseless high-pass filter ⑨ 3-pin XLR socket 11-pin audio cable ③ Status indicator push button ④ Polar pattern selection, jog-dial ⑦ Pre-attenuation indications ⑩ 11-pol. XLR-Stecker Mains socket Getting started ■ ⑦ ④ ⑤ ⑧ ③ ⑥ Make sure that the Mains voltage selection ① switch is set to the correct position.
LCT 840 Using the mic Status indicator ③ ■ The microphone is in normal working mode if the status indicator is illuminated in white. ■ The microphone is in key-lock mode if the status indicator is not illuminated. ■ The microphone experiences clipping due to high SPL if the status indicator flashes in red.
LCT 840 Using the mic Pre-attenuation indications ⑦ ■ The currently active pre-attenuation setting is illuminated in white. Setting a pre-attenuation level ⑧ ■ Pre-attenuation levels can be set by briefly pressing the noiseless pre-attenuationpush button ⑨. Settings are: 0 dB, -10 dB and 20 dB.
LCT 840 Using the mic Key-lock function ■ The noiseless push buttons ⑥ and ⑧ as well as the polar pattern jog dial ④ can be locked by pressing the jog dial knob ④ for more than 2 seconds. Clipping history Checking the clipping history lets you know if the microphone had experienced clipping in the past. The microphone displays the clipping history after constantly pressing the high-pass push button ⑥ for more than two seconds.
LCT 840 Tech graph Tech graph 3 dB / unit dB ref. 1 V / Pa Figure-8 16kHz 3 dB / unit dB ref.
LCT 840 Tech graph 3 dB / unit dB ref. 1 V / Pa Cardioid 16kHz 3 dB / unit dB ref. 1 V / Pa Broad-Cardioid 16kHz 3 dB / unit dB ref.
LCT 840 Tech data Tech data ■ Acoustical operating principle: pressure gradient transducer, ■ Transducer Ø: 25,4 mm ■ externally polarized Equivalent noise level (IEC 61672-1) : 9 dB-A, figure-8 (IEC 61672-1) 1 inch ■ Directional pattern: 9 dB-A, cardioid 10 dB-A, omni (IEC 61672-1) omni ■ Dynamic range of mic. amp.: 130 dB-A broad-cardioid ■ Max.
LCT 840 ■ Supply voltage: Tech data custom power supply unit ■ Dimensions (Mic): 192 x 60 x 46 mm ■ Dimensions (PSU): 250 x 150 x 70 mm 230 V, 50 Hz 110 V, 60 Hz ■ Current consumption: 170 mA ■ Connector: gold plated 11-pin XLR ■ Cable: 8 m (26 ft) 11-pin audio cable oxygen-free copper 7,5 x 2,4 x 1,8 inch 9,8 x 5,9 x 2,8 inch ■ Net weight (Mic): 662 g 23,3 oz ■ Net weight (PSU): 1894 g 66,8 oz 12
LCT 840 Accessories Accessories LCT 40 Wxx LCT 40 SHxx LCT 40 Trs 13
LCT 840 Cautions Cautions ■ The capsule is a sensitive, high precision component. Make sure you do not drop it from high heights and avoid strong mechanical stress ■ To ensure high sensitivity and best sound reproduction of the microphone, avoid exposing it to moisture, dust or extreme temperatures. ■ Keep this product out of the reach of children. and force. ■ Do not use force on the switch or cable of the microphone.
LCT 840 Warranty Warranty All products manufactured by LEWITT GmbH feature a limited two-year warranty. This two-year warranty is specific to the date of purchase as shown on your purchase receipt. LEWITT GmbH shall satisfy the warranty obligations by remedying any material or manufacturing faults free of charge at LEWITT’s discretion either by repair or by exchanging individual parts or the entire appliance.
LCT 840 Regulatory information LEWITT GmbH declares under its sole responsibility that LCT 840 complies WEEE note: Electronic waste has to be collected separately. Please bring with the European directive 2004/108/EC and 2006/95/EC. The product has this device to a local recycling center at the end of its life time.
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